An explosive device, possibly meant for an American military vehicle, hit two Iraqi commuter buses Wednesday morning, injuring at least 22, four seriously, and killing one, according to reports from Iraqi police sources.

The blast ripped through the front, left side of the small commuter bus which was traveling near a Humvee. The Humvee sustained minor damage.

No American troops were injured in the attack.

According to the CNN, the blast took place near Anter Square in northern Baghdad, in front of Al Hariri Girls' School. (Albawaba.com)